sensors Mode-S transponder
7C1B0F
ICAO 24-bit transponder address · allocated to Australia
Currently assigned to VH-FMP · PILATUS PC-24 · operated by ROYAL FLYING DOCTOR SERVICE OF AUSTRALIA CENTRAL OPERATIONS
- Hex
- 7C1B0F
- Octal
- 37015417
- Decimal
- 8,133,391
- Country
- AU
- Tail
- VH-FMP
- Type
- PC24
- Flights observed
- 57
- Distinct callsigns
- 6
- Country
- AU
- Last broadcast
- 3d ago
Last known position
Country allocation
The ICAO 24-bit address 7C1B0F falls within the block assigned to Australia (AU) by ICAO Annex 10, Volume III. Every aircraft registered in Australia receives a permanent address from this block at the time of registration; the address stays with the airframe even if the aircraft is re-registered to a different operator within the country.
Callsign history 6 distinct
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-30 | FD805 | - | May 30, 08:05 UTC | May 30, 08:35 UTC | 30m |
| 2026-05-30 | FD805 | - | May 30, 04:55 UTC | May 30, 05:25 UTC | 30m |
| 2026-05-29 | FD802 | - | May 29, 05:50 UTC | May 30, 05:25 UTC | 23h 35m |
| 2026-05-29 | FD802 | - | May 29, 04:05 UTC | May 29, 04:50 UTC | 45m |
| 2026-05-27 | FD807 | - | May 27, 06:25 UTC | May 27, 06:49 UTC | 25m |
| 2026-05-27 | FD807 | - | May 27, 03:54 UTC | May 27, 04:30 UTC | 35m |
| 2026-05-26 | FD807 | - | May 26, 06:29 UTC | May 26, 06:59 UTC | 30m |
| 2026-05-26 | FD807 | - | May 26, 02:39 UTC | May 26, 03:15 UTC | 35m |
| 2026-05-21 | FD807 | - | May 21, 07:15 UTC | May 21, 07:45 UTC | 30m |
| 2026-05-21 | FD807 | ADL → ADL | May 21, 04:15 UTC | May 21, 05:10 UTC | 55m |
| 2026-05-21 | FD807 | - | May 21, 02:30 UTC | May 21, 03:00 UTC | 30m |
| 2026-05-20 | FD807 | ADL → ADL | May 20, 06:10 UTC | May 21, 03:00 UTC | 20h 50m |
| 2026-05-20 | FD501 | - | May 20, 02:35 UTC | May 20, 03:05 UTC | 30m |
| 2026-05-19 | FD501 | - | May 19, 05:50 UTC | May 20, 03:05 UTC | 21h 15m |
| 2026-05-19 | FD805 | ADL → ADL | May 19, 05:40 UTC | May 20, 03:05 UTC | 21h 25m |
| 2026-05-19 | FD805 | - | May 19, 03:10 UTC | May 19, 03:45 UTC | 35m |
| 2026-05-17 | FD803 | - | May 17, 18:40 UTC | May 17, 19:15 UTC | 35m |
| 2026-05-17 | FD807 | ADL → ADL | May 17, 04:15 UTC | May 17, 14:50 UTC | 10h 35m |
| 2026-05-17 | FD807 | - | May 17, 01:55 UTC | May 17, 02:25 UTC | 30m |
| 2026-05-16 | FD804 | ADL → ADL | May 16, 06:01 UTC | May 17, 02:25 UTC | 20h 24m |
| 2026-05-16 | FD804 | - | May 16, 02:50 UTC | May 16, 03:20 UTC | 30m |
| 2026-05-15 | FD804 | - | May 15, 05:50 UTC | May 16, 03:20 UTC | 21h 29m |
| 2026-05-15 | FD803 | ADL → ADL | May 15, 05:35 UTC | May 16, 03:20 UTC | 21h 44m |
| 2026-05-14 | FD803 | - | May 14, 03:50 UTC | May 15, 01:40 UTC | 21h 50m |
| 2026-05-14 | FD803 | ADL → ADL | May 14, 03:25 UTC | May 15, 01:40 UTC | 22h 15m |
| 2026-05-14 | FD803 | - | May 14, 01:10 UTC | May 14, 01:45 UTC | 35m |
| 2026-05-11 | FD805 | - | May 11, 04:15 UTC | May 11, 04:55 UTC | 40m |
| 2026-05-11 | FD805 | - | May 11, 02:10 UTC | May 11, 02:40 UTC | 30m |
| 2026-05-08 | FD805 | - | May 8, 07:39 UTC | May 8, 08:09 UTC | 30m |
| 2026-05-08 | FD805 | - | May 8, 04:29 UTC | May 8, 05:05 UTC | 35m |
| 2026-05-07 | FD807 | - | May 7, 03:50 UTC | May 7, 04:25 UTC | 35m |
| 2026-05-07 | FD807 | - | May 7, 01:15 UTC | May 7, 01:50 UTC | 35m |
| 2026-05-06 | FD807 | - | May 6, 03:50 UTC | May 7, 01:50 UTC | 21h 59m |
| 2026-05-06 | FD803 | - | May 6, 01:01 UTC | May 6, 01:30 UTC | 30m |
| 2026-05-05 | FD803 | ADL → ADL | May 5, 04:55 UTC | May 6, 01:30 UTC | 20h 35m |
| 2026-05-05 | FD803 | - | May 5, 01:30 UTC | May 5, 02:10 UTC | 40m |
| 2026-05-04 | FD803 | - | May 4, 01:20 UTC | May 4, 01:30 UTC | 10m |
| 2026-04-28 | FD804 | - | Apr 28, 11:30 UTC | Apr 28, 12:10 UTC | 40m |
| 2026-04-28 | FD807 | - | Apr 28, 07:50 UTC | Apr 28, 08:25 UTC | 35m |
| 2026-04-27 | FD807 | - | Apr 27, 05:55 UTC | Apr 27, 06:05 UTC | 10m |
| 2026-04-26 | FD803 | - | Apr 26, 03:20 UTC | Apr 26, 03:50 UTC | 30m |
| 2026-04-26 | FD803 | - | Apr 26, 01:50 UTC | Apr 26, 02:25 UTC | 35m |
| 2026-04-24 | FD803 | - | Apr 24, 03:45 UTC | Apr 24, 04:15 UTC | 30m |
| 2026-04-24 | FD803 | - | Apr 24, 00:40 UTC | Apr 24, 01:20 UTC | 40m |
| 2026-04-21 | FD807 | - | Apr 21, 10:50 UTC | Apr 21, 11:25 UTC | 35m |
| 2026-04-21 | FD807 | - | Apr 21, 07:15 UTC | Apr 21, 07:45 UTC | 30m |
| 2026-04-19 | FD804 | - | Apr 19, 05:25 UTC | Apr 19, 06:00 UTC | 35m |
| 2026-04-19 | FD804 | - | Apr 19, 02:20 UTC | Apr 19, 02:50 UTC | 30m |
| 2026-04-17 | FD805 | - | Apr 17, 18:25 UTC | Apr 17, 19:00 UTC | 35m |
| 2026-04-17 | FD805 | - | Apr 17, 14:20 UTC | Apr 17, 14:55 UTC | 34m |
About Mode-S
A Mode-S transponder code (also called an "ICAO 24-bit address" or "hex code") is a 6-character hexadecimal identifier permanently assigned to an aircraft when it's first registered. Unlike callsigns (which change with each flight) or registrations (which can change if an aircraft is sold internationally), the Mode-S address stays with the airframe for the life of the aircraft in that country.
Every ADS-B transmission from an aircraft includes its Mode-S address, making it the most reliable way to identify a specific airframe. Flight-tracking services like Apparatus use the Mode-S address as the primary key for tying position broadcasts, callsigns, and ownership records together.
Prefer a tail-number view? See the VH-FMP page for operator, model, and routing details .